Hey everyone,

  
A few days ago I had all of you look at my first iteration and I got a lot of good feedback which I appreciate so much!! Thank you everyone in community, I'm a beginner with PCB design but I'm quite passionate about it so I appreciate any and all the feedback I get!

Project:

I want to get a functional PCB with a buck convverter and mosfet with a gate driver that with be utilzied on a future project. My Power supply is 12V 30A. Which is plenty of juice for this board.

  
**Changes since last revision:**

Followed buck design from TI's webench tool 

I changed the amount of layers from 2 to 4. I thought this would make routing much easier. The layer stack up is signal - +12V - signal - ground.

Followed the design suggestions for the Buck IC and Mosfet Gate Driver(what a genius idea, actually following the data sheet -- I didn't do that on my previous design). 

Added a Vout connector

Added EDS projection diodes at each of the +12V connectors

Tighted up components, put decoupling caps much closer to ICs

  
**Board Specs:**

4 layer board

Most traces are 1mm wide, the other ones are 0.5mm(most signal connections)

Mosfet Drain is connected to a heating plate that draws 12V at 4.17A

If you see aythiing alarming let me know!!!!!! Thank you again everyone!!

Buck Converter/Mosfet Test Board